Shape selectivity in toluene disproportionation into para-xylene generated by chemical vapor deposition of tetramethoxysilane on MFI zeolite catalyst

(Left) Schematic drawing of shape selective formation of para-xylene and benzene by toluene disproportionation on silica-modified MFI with suitable pore-opening size. (Right) Selectivity-conversion plots on various catalysts. Only the present study gave higher selectivity than the conventional process.220